Figure 4From: Leiomyosarcoma with partial rhabdomyoblastic differentiation: First case report of primary cardiac origin Photomicrographs showing spindle cells and their phenotypical expression. (A) Spindle cells had an elongated, blunt-ended and hyperchromatic nucleus plus spindle, were fibrillated, and possessed an eosinophilic cytoplasm. Occasional cells have perinuclear vacuoles (Hematoxylin and Eosin double stain, × 400). (B, C, D, E, and F) Photomicrographs of immunostain with desmin (B), α-smooth muscle actin (C), myoglobin (D), myogenin (E), and cytokeratin CAM 5.2 (F), respectively (× 400).Back to article page